Application Armor is a Linux kernel security module for restricting programs’ capabilities by using per-program profiles. AppArmor uses the Linux […]
Bash Shell Script Cheat Sheet
BLACK=`tput setaf 0` RED=`tput setaf 1` GREEN=`tput setaf 2` YELLOW=`tput setaf 3` BLUE=`tput setaf 4` MAGENTA=`tput setaf 5` CYAN=`tput setaf […]
2FA with Yubikey on Ubuntu 20.04
In this post, I will cover the usages of a Yubikey for: Protect local sudo command, Protect local gnome login […]
Monitoring Servers with Prometheus and Grafana on Ubuntu 20.04
Prometheus is a systems and service monitoring system [Link]. Out of the box, Prometheus monitored the host where it is […]
Building a Stream Server with Owncast on Ubunru 20.04
Owncast is the solution for broadcast videos, classes, presentations, games, talks, or anything else independently of any vendor or service […]
Hardening OpenSSH with 2FA on Ubuntu 20.04
This setup will require the Google Authenticator app to create the OTP (One-Time-Password). Android [Link] iOS [Link] sudo apt install […]
Ubiquiti Unifi Controller Setup on Ubuntu 20.04 or Docker
Unifi offers a free (but not open-source) controller solution based on Linux with an amazing web GUI and integration with […]
Setting Up a Tor Node on Ubuntu 20.04
The Tor network relies completely on volunteers to route the traffic from the origin to the destination. If you are […]
Tor Snowflake Against the Internet Censorship
People who are censored can use Snowflake proxies, which are run by volunteers, to access the Internet through the Tor […]
Using Port Knocking to Secure SSH in Ubuntu 20.04
Port Knocking allows one to open/close a remote port in the firewall of a server with the usage of a […]